Spraying device



B. L. GIFFORD.

SPRAYING DEVICE.

APPLICATION FILED Nov.23. 1917.

1,361,979. Patented Dee. 14,1920.

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SPRAYING DEVICE. APPLICATION msn Nov. 23, 1917.

1,361,979, Patented Dec. 14, 1920.

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE.

BERT L. GIFFORD, OF BARKER, NEW YORK, ASSIGNOR TO GIFFORD MANUFACTURING COMPANY, INCORPORATED, OF BAKKER, NEXV YORK, A CORPORATION OF NEW YORK.

SPRAYING DEVICE.

Application filed November 23, 1917.

To all whom t may concern Be it known that I, BERT L. GIFFORD, a citizen of the United States, residing at Barker, in the county of Niagara and State of New York, have invented certain new and useful improvements in Spraying Devices, 0f which the following is a specification.

This invention relates to improvements in spraying devices, and more particularly what are commercially termed spraying guns.

The primary object of my invention is the production of a spraying gun in which provision is made for controlling or regulating the spray so that it will have a maximum projection with a minimum spread of spray, so that it may have a maximum spread of spray with a minimum of projection, or so that it may be regulated to any degree between these two conditions.

A further object of my invention is to provide the same with means for separating undissolved and foreign matter from the liquid before reaching the spraying head of the gun, thus avoiding clogging of the openings or ports in the spraying head or nozzle.

A further object is to provide convenient means for manipulating the gun to control the spray, and to otherwise improve on spraying guns now in use.

To these ends the invention consists in a gun having a spraying head and means to separate undissolved and foreign matter from the liquid prior to reaching said spraying head.

lt also consists in the novel means for manipulating the gun to control the spray; in the novel features of construction; and in the arrangement and combination of parts to he hereinafter described and more particularly pointed out in the subj oined claims.

Referring to the drawings:

Figure 1 is a side elevation of a gun conl structed according to my invention.

Fig. 2 is an enlarged longitudinal section through the spraying head of the gun and the adjacent end of the tube supporting said spraying head, the operating parts being shown in the positions in which they shut oif the flow of the liquid insecticide.

Fig. 3 is a cross section taken on line a-a Fig. 2.

Fig. i is a cross section taken on line b--b, Fig. 2.

Specification of Letters Patent.

Patented Dec. 14, 1920.

serial No. 203,507.

Fig. 5 is a cross section taken on line c-c, Fig. 2. I

Fig. 6 is an enlarged longitudinal section through the lower end of the gun showing the separator by means of which the undissolved matter and any foreign matter in the Lliquid .insecticide i is separated from I-the liquid passing to the spraying head of the gun.

Fig. 7 is a cross section taken on line cZ-d, Fig. 6.

Fig. 8 is a longitudinal section similar to Fig. 2, with the operating parts in a position in which the maximum spread of spray and the minimum of projection is attained.

Fig. 9 is a similar section showing the operating parts in the position in which the maximum projection and minimum spread of spray is obtained.

Fig. 10 is a detached perspective view of the controlling sleeve and the bar attached thereto.

Fig. 11 is an enlarged cross section taken on line e-e, Fig. 1.

Fig. 12 is a detached perspective view of the liquid-whirling sleeve.

Fig. 13 is an enlarged longitudinal section through the regulating head and the adjacent end of the manipulating rod to which it is secured.

Figs. 14 and 15 are side elevations of the liquid-whirling sleeve viewed from points at right angles to each other.

Fig. 16 is an end view of said sleeve looking up in Fig. 14.

rlhe reference numeral 17 designates a tube which may be of Vany desired length and lwhich is provided withscrew threads at one end onto which is threaded a spraying head or nozzle 18. The other end of said tube is reduced in diameter, as at 19, and the upper end of said reduced portion is provided with screw threads 20, said screw threaded end fitting into a threaded opening in a separator 21 and said reduced portion being wholly within said separator.

The spraying head or nozzle comprises a l casing having a hollow body portion 22 and a cap 23, and a plurality of elements confined therein for controlling the projection and the area of spray of the material issuing therefrom. Said hollow body portion 22 has its interior formed of two different diameters, as clearly shown in Figs. 2, 8, and 9, and the outer end of its exterior is reduced in diameter and threaded, as at 24, and to this threaded reduced portion the cap 23 is applied, said cap being internally threaded for such purpose. rlhe cap 23 has a large central opening 25, and fitting against the flat wall 26 surrounding said opening is a disk 27 having a central orilice 23. Between the disk 27 and the outer edge of the body portion a washer 29 is interposed..

30 designates a liquid whirling sleeve which has at its upper or outer end an external flange 31 and an internal flange 32, this sleeve being preferably of a length to correspond to the length of the body portion internally and being of a diameter somewhat less than the diameter of the smallest internal diameter of said body portion to provide an annular intervening space 33 between the two. Between the internally enlarged portion of said body portion 22 and said sleeve an annular intervening space 34 is formed which is somewhat larger than the intervening space 33 and of greater length.

At the outer end of the body portion 22 a rabbet 35 is formed into which the external flange 31 of the sleeve 30 fits so that the outer end of said sleeve is flush with the outer edge of said body portion. The sleeve 30 is provided at diametrically opposite points with ports 36 which are approximately one-half the length of the sleeve, one edge 37 of each of said ports being radially disposed and the other edge 38 being on a tangent. At diametrically opposite points between the ports 36 are ports 39 which extend from the inner or lower end of the sleeve to a point near the external flange 3l. One edge 40 of each of said ports 39 is arranged on a tangent and is straight lined from one end to the other, while the other edge is straight lined for a distance from the inner or lower end of the sleeve, as at 41, thence curved, as at 42, to reduce the width of the port 39 and thence again straight lined, as .at to pr'ovide a. narrow upper portion for said port; said other edge being preferably arranged radially, but not necessarily so.

44 are return ports formed in the sleeve 30, these ports being arranged at diametrically opposite points and each extends from the outer or upper end of the sleeve inwardly to a point a short distance from the upper ends of the ports 3G. These return ports are arranged on a tangent, as best shown in Fig. 12.

The washer 29 which is interposed between the disk 27 and the outer edge of the boc y portion 22 also bears against the upper edge of the sleeve 30, owing to the upper edge of said sleeve being flush with the upper edge of said body portion, and in this manner a whirling chamber 45 is provided between the disk 27 and the sleeve 30.

The separator 21 comprises a cylindrical body portion 46 provided with an internally threaded opening 47 at its upper end, and having a lateral extension 43 whose axis is inclined to the axis of said body portion. Said extension is internally threaded at its outei end, as at 49, for attachment thereto of a suitable coupling by means of which a hose may be connected to the separator. The lower open end of said easing 46 is closed with a cap 50 having a boss 51 formed thereon which serves as part of a packing box, the other part of said packing box being designated by the numeral 52. Through this packing box a manipulating rod 53 is passed which extends through the separator, through the tube 17, and into the spraying head or nozzle. The upper end of this manipulating rod has a plunger sleeve 54 attached thereto by means of a cotter pin 55 passing through said sleeve and through the rod, or in any other approved manner. The manipulating rod 53 terminates short of the upper end of said plunger sleeve so as to form a pocket 56 in which a rubber or other resilient plug 57 is fitted, said plug being fastened to the sleeve by means of a pin 53. y

The plunger sleeve 54 is provided at its upper end with an external flange 59. Slidably vfitting onto the plunger sleeve is a plunger body 60, said plunger body and sleeve forming a two-part plunger or regulating' head with the parts thereof relatively niovableg'that is, the plunger body 60 has a central opening 61 enlarged at its upper end, as at 62, to form a shoulder 63 in said rentral opening, said enlargement, being adapted to receive the external flange 59 which serves as a stop for the plunger body when moving in one direction, while the cotter pin 55 serves as the stop for said body when moving in the opposite direction.

The plunger or regulating head formed by the plunger sleeve 54 and plunger body 60 is slidable within the liquid-whirling sleeve, as will be clear upon examination of Figs. 2, S and 9, and it is manipulated withinsaid sleeve by means of the manipulating rod to which it is attached. This plunger serves to open or closeV the ports 36 and 39 to the desired degree, and also regulates the passage of the liquid insecticide through the tangential ports 44. It also serves to completely shut ofi'l the flow of liquid insecticide from the spraying head or nozzle and may therefore in a broad sense be termed a valve while the liquid-whirling sleeve may in a like sense be termed a valve sleeve or easing.

Surrounding the tube 17 is a controlling sleeve 64 which is slidable on said tube and to which is welded or otherwise secured a bar 65 which extends downwardly and outwardly from said guide sleeve and thence downwardly parallel with the separator casing and finally is bent at a right angle to intersect the axis of the complete gun, said bar having a threaded aperture 66 whose axis is coincident with the axis of the manipulating rod 53, the lower end of said rod being provided with screw threads and being threaded through said aperture so that the regulating head or valve at the upper end of the manipulating rod may be adjusted with respect to the escape opening 28 in the disk of the spraying head or nozzle, this being found necessary when the rubber or other resilient plug 57 becomes worn.

In order to retain the manipulating rod in proper position, a lock nut 67 threaded onto the lower threaded end of said manipulating rod bears against the inner side oic the bar 65. Said bar is extended a distance beyond the manipulating rod So as to provide a convenient handle for manipulating said rod and said controlling sleeve, which sleeve is provided with a slot 68 extending upwardly from its lower end and has one side thereof straight faced and the other side provided with notches 69 into any one of which a stop pin 70 is adapted to tit, each of the notches representing a certain position of the regulating head or valve within the spraying head or nozzle.

The operation of the device is as follows,

lilith the parts as shown in Figs. 2 and 6. the spraying head or nozzle is shut olf, although the liquid insecticide may be therein under pressure. When it is desired to spray low trees, shrubbery, etc. with a tine spray extending over a considerable area, it is simply necessary to draw downwardly slightly upon the manipulating rod 53, whereupon the regulating head is drawn downwardly to the position shown in Fig. 8, in which the escape opening 2S in the disk 2T is shown uncovered. The liquid insecticide enters the liquid whirling sleeve from the tube 17 and passes outwardly therefrom into the annular spaces 34 and 33 between said sleeve and the wall of the body portion of the spraying head, the ports 36 being iully uncovered while the ports 39 are almost entirely uncovered.

lt is to be noted, however, that in either of the positions shown in Figs. 2 or 8, the plunger body 60 has its upper end in contact with the underside of the internal flange 32, and that in moving the manipulating rod from the position shown in Fig. 2 to that shown in Fig. 8, only the plunger sleeve 5l drawn downwardly to seat the flange 59 thereof in the enlarged portion of the opening 6l in the plunger body.

When the escape opening 28 is closed, the flange 59 of said plunger sleeve is positioned outside of the plunger body, with the result that the plunger sleeve moves within the plunger body when moving the plug 57 from the position shown in Fig. 2 to that shown in Fig. 8. It is apparent that the plunger body 60 remains in contact with the internal flange of the liquid whirling sleeve by reason of the pressure of the liquid insecticide underneath the same.

lilith the parts in the positions shown in Fig. 8, liquid insecticide, after having passed through the ports 36 and 39 and after having entered the annular spaces 33, 34 surrounding said liquid-whirling sleeve, passes through the return ports 44 between the plunger body and the washer and disk above, and by reason of said return ports being tangentially arranged .the liquid is given a whirling motion as it enters the whirling chamber 45, with the result that it will escape through the escape opening 28 in the disk 27 in ine spray covering a considerable area, but being limited in extent ot projection.

In Fig. 9 the regulating head is positioned in close proximity to the lower ends of the ports 36 and 37, thus limiting the size of these ports where the liquid insecticide passes into the annular space 34; around the liquid-whirling sleeve, and as the major portion of the ports 36 and 39 are uncovered above said regulating head the liquid in* secticide may flow upwardly through said annular space and into the annular space 33, and may also pass inwardly through the ports above the regulating head after having passed outwardly from below said head. Thus a considerable quantity of the liquid passes upwardly through the enlarged opening at the upper end of the liquid-whirling sleeve and is not given so forcibly a whirling action as the portion passing inwardly through the return ports 44. However, the tangential edges or" the ports 36 and 39 tend to give the liquid passing inwardly through such ports a whirling action, but owing to the width of these ports, the whirling action is in a measure lost in passing upwardly within said sleeve to the escape opening oit the disk 27, but the liquid insecticide passing through the narrowed upper ends of the ports 39 tends to increase the whirling action of the liquid passing upwardly in said sleeve.

lilith the parts in the positions shown in Fig. 9, the liquid insecticide escapes through the escape opening Q8 with a whirling action but not in as tine a spray. However, the Jforce of the liquid insecticide upwardly within the liquid-whirling sleeve tends to project the escaping liquid to a greater distance, but the area covered is considerably less. Any degree between the two extremes occasioned by the adjustment of the parts shown in Figs. 8 and 9 may be readily had by adjustment of the regulating head within the liquid-whirling sleeve, such adjustments being shown by the notches 69 in the controlling sleeve 64. The range of adjustment of the regulating' head is considerable and the spraying head is therefore adapted for use with liquid insecticide introduced into the head under various pressures.

While 1 have described the angles of the side edges of the ports, and other details of construction, it is apparent that my invention is susceptible to changes in this respect and also to many changes in construction or arrangement of parts without departing from the spirit of the invention or sacrificing any of the advantages thereof.

Having thus described my invention7 what l claim is,- y

l. A spraying device comprising a spraying head having an escape opening, a sleeve within said head spaced from the wall of the latter, said sleeve having peripheral ports through which liquid insecticide passes outwardly and then inwardly and through a part of which liquid insecticide passes inwardly under whirling motion, a central regulating device within said sleeve having means to regulate the flow of liquid insecticide outwardly through said ports and also inwardly therethrough after having passed outwardly.

2. A spraying device comprising a casing, a cap secured to said casing and having a removable disk provided with an escape opening, a liquid-whirling sleeve within said casing separated from the wall thereof by an intervening space, said sleevehaving peripheral ports through which liquid insecticide is adapted to flow outwardly into said space and other ports through which the liquid insecticide is adapted to flow inwardly and by means of which it is given a whirling motion, means within said sleeve to Vregulate the flow of the liquid insecticide outwardly and inward relatively, and means for operating said regulating means from the exterior of said casing. Y

3. A spraying device comprising a casing having an inlet and an escape opening, a liquid-whirling sleeve within said. casing spaced from the wall thereof and having a plurality of ports, and means within said sleeve to cause liquid to pass out of said sleeve through certain of said ports and enter said sleeve through the other of said ports so as to escape through said escape opening under whirling motion.

4. A spraying device comprising a casing having an inlet at one end and an escape opening at its other-end, a liquid-whirling sleeve open at both ends and into which liquid from said inlet is directed, and regulating means within said sleeve to control the flow of the liquid into the casing and the flow and whirling action of the liquid threugh said escape opening.

5. A spraying device comprising a casing having an inlet and an escape opening and having its interior formed of two different diameters, a whirling sleeve within said casing open at opposite ends and being separated from the wall of said casing by intervening spaces of4 di'erent sizes, said sleeve having a plurality of ports which open into said space and part of which open into the space above said sleeve, said ports being arranged to cause a whirling action of the liquid in passing therethrough, and means within said sleeve whereby certain of said -ports may beopened to full extent while others are partly closed thereby.

6. A spraying device comprising a casing having an inlet at one end and an escape opening at its other end and having its interior formed of two diferent diameters, a liquid-whirling sleeve within said casing and separated from the wall of the latter by intervening spaces of different sizes, said sleeve being open at opposite ends and having peripheral ports, part of which ports open into the larger space between said sleeve and the wall of the casing, part of which ports open both into said larger space and into the smaller space between said sleeve and the wall of the casing and part of which ports open into both of said spaces and also into the space above said sleeve, and a plunger slidably movable within said sleeve to shut o any desired portion of certain of said ports.

T. spraying device comprising a casing having an inlet at one end and an escape opening at its other end, a liquid-whirling sleeve within said casing spaced from the wall of the same and open at both ends, said sleeve having peripheral ports at diaineti'ically oppositeY points extending up wardly from the lower end thereof and teriinating approximately midlength ofsaid sleeve, said sleeve having also ports extending from said end thereof to within a short dista-nce of the upper end thereof and beineV gradually reduced in width toward sait. upper end and having also peripheral ports extending from said upper end inwardly toward a point midlength between the ends of said sleeve, and a plunger slidable within said sleeve and adapted to regulate the flow of liquid therethrough and the escape and whirling action of the liquid through said escape opening.

S. A spraying device comprising a casing having an inlet and an escape opening, a liquid-whirling sleeve within said casing spaced from the wall thereof and having peripheral ports, and a plunger lengthwise movable in said sleeve to cause the liquid to pass outwardly through said ports from underneath said plunger and thence inwardly through certain of said ports above said plunger so as to escape through said escape opening under whirling motion.

9. A spraying device comprising a casing having an inlet at one end and an escape opening its other end, a liquid-whirling sleeve within said casing open at both ends and being spaced from the wall of said casing, said sleeve having ports extending from its lower end upwardly and tangentiallyarranged ports extending from its upper end downwardly, and a regulating head slidable within said sleeve to control the flow of liquid outwardly through said ports or part of said ports and also to control the flow of liquid inwardly through said tangentially-arranged ports.

10. A spraying device comprising a casing having an inlet at its lower end and an escape opening at its upper end, a liquidwhirling sleeve arranged within said casing and being open at both ends and spaced from the wall of said casing, said sleeve having an internal flange at its upper end and having peripheral ports, a plunger slidable within said casing comprising a plunger body limited in its movement in one direction by said flange and a plunger sleeve adapted for limited movement within said body but otherwise being movable with said body, and a rod to which said plunger sleeve is secured. Q

11. A spraying device comprising a casing having an inlet at one end and an escape opening at its other end, a liquid-whirling sleeve within said casing spaced from the wall thereof and having peripheral ports, a regulating head slidable within said sleeve comprising a plunger body and a plunger sleeve having limited movement axially with respect to said body but being otherwise movable with said body, and means for manipulating said plunger sleeve with or independent of said plunger body.

12. A spraying device comprising a casing having a body portion externally threaded at its upper end and provided with a rabbet at said end, a cap threaded onto the upper end 0f said body portion and having an axial escape opening, a liquid-whirling sleeve within said casing having an external flange fitting within said rabbet and being open at opposite ends and provided with peripheral ports, part of said ports extending upwardly from the lower end of said sleeve and part extending downwardly from the upper end of said sleeve, and a regulating head slidable within said sleeve and having means to close said escape opening and also means to control the flow of liquid outwardly through said ports and inwardly through certain of said ports to regulate the fineness of spray, the extent of projection thereof and the area covered thereby.

13. In a spraying device, liquid regulating means comprising a sleeve having peripheral ports and a regulating head within said sleeve having a plunger body provided with a central opening enlarged at one end, a plunger sleeve fitting within said opening and having an external flange adapted to enter the' enlarged portion of said opening, a plug fitting into one end of said sleeve` and a pin passin through said sleeve and said plug.

lll. A spraying device comprising a casing having an inlet at one end and an escape opening at its other end, a liquid-whirling sleeve within said casing spaced from the wall thereof and open at opposite ends, said sleeve having peripheral ports, part of which ports extend from one end thereof toward the other and part of which extend from the other end thereof toward the firstmentioned end of said sleeve, a plunger body fitting slidably within said sleeve and having a central opening enlarged at one end, a plunger sleeve fitting within said central opening and having an external flange adapted to fit within the enlarged portion of said central opening, a rod fitting into one end of said plunger sleeve, a pin passed through said rod and sleeve and projecting from the latter, the projecting ends of said pin serving as stops to limit the movement of said sleeve and rod in one direction with. respect to said plunger body, and a resilient plug fitting into the other end of said sleeve and secured thereto, said plug serving to close the escape opening of said casing when said plunger sleeve is moved upwardly to its full limit and said plunger body being adapted to control the passage of liquid through and around said liquid-whirling sleeve.

15. A spraying device comprising a casing externally threaded at its upper end and having a rabbet at said end, said casing being provided with an inlet at its lower end, a liquid-whirling sleeve within said casing having an external peripheral flange fitting into said rabbet and having its upper edge flush with the upper edge of said casing, said sleeve being open at opposite ends and having peripheral ports, a washer seated against the upper edges of said sleeve and casing, a

disl-z seated against said washer and having l l sleeve within said casing open at both ends and having two peripheral ports at diametrically opposite points extending' upwardly from the lower end of said sleeve, said ports being parallel sided and having one of the edges arranged tangentially, a second pair of ports in said sleeve extending from the lower end thereof upwardly to within a short distance of the upper end thereof, one edge ofeach of said last-inentioned ports being straight lined and the other edge being straight lined at its lower portion, curved at its intermediate portion to approach the other edge thereof and being thence straight lined to provide a narrow upper portion for said port, and a third pair of ports arranged tang'entially and extending downwardly from. the upper end of said sleeve, and means for regulating the flow of liquid outwardly through said sleeve and thence inwardly toward the escape opening of said casing.

17. A spraying device comprising a casing having an inlet at one end and an axial escape opening at its other end, a liquid-whirling sleeve within said casing open at opposite ends and spaced from the surrounding wall of said casing, said sleeve having a pair of ports extending upwardly from its lower end, each of said ports being parallel sided and having one of its longitudinal edges arranged tangentially, a second pair of ports between said first-mentioned ports and of .greater length than the latter, each of said second pair of ports being narrowed toward its upper end and having one of its walls arranged tangentially, and a third pair of tangentially-arranged ports extending from theA upper end of said sleeve downwardly, and a plunger movable within said sleeve and havplunger is in its uppermost position, said i plunger being adapted to control the flow of liquid through said sleeve and through said escape opening to regulate the iineness of spray, the area of spread and the projection thereof. A

18. A spraying device comprising a spraying head, a tube to one end of which said head is connected, regulating means within said head for regulating the flow of liquid therethrough, a rod connected to said regulating means and extending through said tube, a regulating sleeve surrounding said tube and rotatable and lengthwise movable thereon, said sleeve having a longitudinal slot with a series of notches formed in one edge thereof, a pin oii said tube adapted to enter any of said notches, and a rigid connection between said sleeve and said rod.

19. A spraying device comprising a spraying head having tangential inlet ports and an axial escape opening, a tube to which said head is secured, a rod extending through `said tube, a plunger sleeve surrounding said rod, means connecting said sleeve with said rod, and a plunger body lengthwise movable on said sleeve and limited in its movement in one direction by said connecting means, said plunger body being adapted for co-action with said tangential inlet ports.

In testimony whereof I ailix my signature in presence of two witnesses.l

REUBEN A. SMITH, MARY CoNNoLLY. 

